3 silver penny, King Friedrich Wilhelm IV., smooth ground, bright yellowish orange, fresh colours and all-round wide-margined stamp in perfect exceptional preservation, unused without gum, on very thinly paper, expertized Kastaun BPP, photo expertize Juergen Kastaun BPP (1982), Michel 400.-, we hold these rare stamp by Michel DSK volume 1 2026 for entirely undervalued